US6274732B1 - Process for the preparation of 1-[(cyclopent-3-en-1-yl)-methyl]-5-ethyl-6-(3,5-dimethylbenzoyl)-2,4-pyrimidinedione - Google Patents

Process for the preparation of 1-[(cyclopent-3-en-1-yl)-methyl]-5-ethyl-6-(3,5-dimethylbenzoyl)-2,4-pyrimidinedione Download PDF

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Publication number
US6274732B1
US6274732B1 US09/472,978 US47297899A US6274732B1 US 6274732 B1 US6274732 B1 US 6274732B1 US 47297899 A US47297899 A US 47297899A US 6274732 B1 US6274732 B1 US 6274732B1
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United States
Prior art keywords
compound
formula
process according
preparation
ethyl
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Expired - Lifetime
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US09/472,978
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English (en)
Inventor
Eui-Hwan Cho
Sun-Gan Chung
Sun-Hwan Lee
Ho-Seok Kwon
Jae-Eung Lee
Dong-Wook Kang
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Samjin Pharmaceutical Co Ltd
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Samjin Pharmaceutical Co Ltd
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Assigned to SAMJIN PHARMACEUTICAL CO., LTD. reassignment SAMJIN PHARMACEUTICAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHO, EUI-HWAN, CHUNG, SUN-GAN, KANG, DONG-WOOK, KWON, HO-SEOK, LEE, JAE-EUNG, LEE, SUN-HWAN
Assigned to SAMJIN PHARMACEUTICAL CO., LTD. reassignment SAMJIN PHARMACEUTICAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHO, EUI-HWAN, CHUNG, SUN-GAN, KANG, DONG-WOOK, KWON, HO-SEOK, LEE, JAE-EUNG, LEE, SUN-HWAN
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52Two oxygen atoms
    • C07D239/54Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings

Definitions

  • the present invention relates to a process for the preparation of a compound of the general formula (I) and a novel reactant useful for the process.
  • the inventors have developed the compound of the formula (I) useful as an antivirus agent, especially for the treatment of AIDS (Korean patent application, No. 96-47458; PCT/KR96/00265).
  • the compound of the formula (I) may be prepared by reacting a compound of the formula (II) with a compound of the formula (III).
  • the reaction may be represented by the following scheme (1).
  • Lie is a leaving group such as halogen atom, alkylsulfonyl, or arylsulfonyl.
  • the inventors have continued their efforts to improve the process for the preparation of the compound of the formula (I), and now found a novel reactant useful for the process. As the result, a simpler and more economic process for the preparation of the compound can be established by using the novel reactant.
  • an object of the invention is to provide a simple and economic process for the preparation of the compound of the formula (I).
  • Another object of the invention is to provide a new reactant which is useful for the process for the preparation of the compound of the formula (I).
  • the process according to the present invention simplifies the synthesis and increases the yield of the objective compound, and may be represented by the following scheme (2).
  • Lie is a leaving group such as halogen atom, alkylsulfonyl, or arylsulfonyl.
  • the compound of the formula (I) may be prepared by reacting a compound of the formula (IV) with a compound of the formula (III) in the presence of a base with injection of oxygen.
  • the bases used in the above reaction may include, for example, sodium bicarbonate, sodium carbonate, potassium carbonate and sodium hydride.
  • the solvents used in the reaction may include organic polar solvents such as dimethylformamide.
  • the catalysts such as lithium iodide, sodium iodide and potassium iodide may be used in the reaction.
  • the reaction may be carried out at the temperature of 10 ⁇ 100° C. for 4-72 hours.
  • the new reacting compound of the formula (IV) of the invention may be prepared by the following reaction scheme (3).
  • the compound of the formula (IV) may be prepared by hydrolyzing a compound of the formula (V) in the presence of an acid.
  • the starting material of the formula (V) may be prepared by various known methods.
  • Acids used in the reaction may include, for example, hydrochloric acid and sulfuric acid.
  • the reaction may be carried out at the temperature of 25 ⁇ 120° C. for 1-48 hrs.
  • the present invention provides an improved process for the preparation of the compound of the formula (I), which is useful as an antivirus agent, with features of simple process and increased yield.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
US09/472,978 1999-03-10 1999-12-28 Process for the preparation of 1-[(cyclopent-3-en-1-yl)-methyl]-5-ethyl-6-(3,5-dimethylbenzoyl)-2,4-pyrimidinedione Expired - Lifetime US6274732B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR99-7892 1999-03-10
KR1019990007892A KR100311949B1 (ko) 1999-03-10 1999-03-10 1-[(사이클로펜트-3-엔-1-일)메틸]-5-에틸-6-(3,5-다이메틸벤조일)-2,4-피리미딘다이온의제조방법

Publications (1)

Publication Number Publication Date
US6274732B1 true US6274732B1 (en) 2001-08-14

Family

ID=19576087

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/472,978 Expired - Lifetime US6274732B1 (en) 1999-03-10 1999-12-28 Process for the preparation of 1-[(cyclopent-3-en-1-yl)-methyl]-5-ethyl-6-(3,5-dimethylbenzoyl)-2,4-pyrimidinedione

Country Status (5)

Country Link
US (1) US6274732B1 (ko)
EP (1) EP1035116B1 (ko)
JP (1) JP3272340B2 (ko)
KR (1) KR100311949B1 (ko)
DE (1) DE69914719T2 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060094738A1 (en) * 2004-08-20 2006-05-04 Buck Institute For Age Research Small molecules that replace or agonize p53 function

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5922727A (en) 1996-02-22 1999-07-13 Samjin Pharmaceutical Co., Ltd Antiviral substituted pyrimidinedione homocarbocyclic nucleoside derivatives and methods for the preparation thereof and compositions containing the same as active ingredients

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0151811B1 (ko) * 1993-12-21 1998-10-15 강박광 신규한 항바이러스성 2,4-피리미딘디온 유도체 및 그의 제조방법
KR100219922B1 (ko) * 1996-05-16 1999-09-01 이서봉 신규한 항바이러스성 6-아릴옥시 및 6-아릴카르보닐 2,4-피리미딘디온 유도체 및 그의 제조 방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5922727A (en) 1996-02-22 1999-07-13 Samjin Pharmaceutical Co., Ltd Antiviral substituted pyrimidinedione homocarbocyclic nucleoside derivatives and methods for the preparation thereof and compositions containing the same as active ingredients

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060094738A1 (en) * 2004-08-20 2006-05-04 Buck Institute For Age Research Small molecules that replace or agonize p53 function
US7994184B2 (en) * 2004-08-20 2011-08-09 Buck Institute Small molecules that replace or agonize p53 function
US9789121B2 (en) 2004-08-20 2017-10-17 Buck Institute Small molecules that replace or agonize p53 function

Also Published As

Publication number Publication date
EP1035116B1 (en) 2004-02-11
JP2000264878A (ja) 2000-09-26
JP3272340B2 (ja) 2002-04-08
DE69914719D1 (de) 2004-03-18
KR100311949B1 (ko) 2001-11-02
EP1035116A1 (en) 2000-09-13
KR20000059946A (ko) 2000-10-16
DE69914719T2 (de) 2004-07-29

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